Pressure-regulator.



No. 697,702. Patented Apr. I5, |902.

T. J. BUCKLEY 8f. F. E. PLACE.

PRESSURE REGULATR.

(Application filed Apr. 3.0, 1901.5

(No Model.;

ire

Artnr OFFICE..

THOMAS J. BUCKLEY AND FREDRICK E. PLACE, OF. CHICAGO, ILLINOIS.

PRESSURE-REGULATOR.

SPECIFICATION forming part of Letters Patent NO. 697,702, dated April15, 1902.

Application filed April 30, 1901. Serial No. 58,217. (No model.)

10 all whom t iii/ay concern.-

Be it known that we, THOMAS J. BUOKLEY and FREDRICK E. PLACE, citizensof the United States, residing at Chicago, in the county of Cook andState of Illinois, have invented certain new and useful Improvements inPressure-Regulators; and we do hereby declare the following to be afull, clear, and eX- act description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same.

Our invention relates to that class of regulators which are set tomaintain a predetermined pressure upon the discharge side of the valvefrom a varying higher pressure on the inlet side of the valve.

Referring to the accompanying drawings, Figure l is a vertical sectionof the regulator Fig. 2, a top view ot' the body of the Valve with thecap and diaphragm removed, and Fig. 3 is a View of the diaphragm.

Like letters of reference indicate the same parts throughout the severalfigures, in which A is the shell of the valve, having the inlet B andoutlet C. A cylindrical partition D is located between the inlet andoutlet of the shell and extends nearly to the t-op of the shell A. Theupper end of cylindrical partition is open and forms a seat d for thediaphragm E, which is moved by the varying pressure upon each side,causing the diaphragm to act as a valve to close more or less theopening between it and the seat d. The upper part of the case is facedoff and is provided with a circular channel a, forming two p circularseats b b, upon which the outer edge of the diaphragm is held by the capF.

c is a passage connecting the discharge side of the valve with thechannel a.

F is the cap, provided with the flange G, which is screw-threaded in itsinner side to fasten it to the casing. A shoulder e is formed on theinner side of the cap next to the iiange G, and another flange h on thecap a short distance inside of liange, which forms between them achannel m. On screwing the cap on the shell the diaphragm is clampedbetween the shoulder e, the ange h, and shell A. The diaphragm being ofcopper, a steam-tight j ointis made between the cap and shell.

To permit the back pressure to act on the upper side of the diaphragm, aseries of perforations n n are made through the same, which connects thetwo channels d and m. A series of perforations fi are also made in theiiange h. Thus the back pressure can pass through passage c into thechannels a 'm and through fiangerh and there act on the diaphragm.

Projecting from the cap Fis a hollow neck I-I, provided with fourlongitudinal guidegrooves 0 o for the nut I. Upon the diaphragm is aplate P, provided with an extension, around which one end of the spiralspring K is placed. The other end of the spring is placed around asimilar extension on the bottom of the nut I. This arrangement keeps thespring in place.

A stem Q on its outer end is provided with a handle N, secured in anywell-known manner, and below this handle the stem is screwthreaded, asS, for the jam-nut M. The other end of the stem passes into and throughthe nut I, that portion being screw threaded. The stem is also providedwith a collar Z, its conical face being in contact with a similar faceon the inner and upper part of the neck, whereby a steam-tight joint ismade. The regulator is set for a given pressure by turning the jam-nutup on the stem, thus permit` ting the stem to turn. This causes the nutI to reciprocate in the neck to increase or decrease the pressure of thespring, which directly acts on the plate P. Vhen the properspring-pressure is obtained, the jam-nut is turned down on the neck,thereby preventing the turning of the stem and nut.

The high-pressure steam is admitted in the inlet B and acts on the underside of the diaphragm, raises it, and passes through the cylindricalextension D and outlet C. Here the pressure also goes through thepassage c, into the' channel ce, through the many perforations in thediaphragm, into channel m,and through the perforations in the flange 7i.This pressure is assisted by the spring to close the v opening in thecylindrical partition by forcing the diaphragm to close the openingagainst the high pressure and the diaphragm.

It might be well to state here that in regulators generally the reducedpressure works from the bottom side of diaphragm with loo screw andspiral spring on top, whereas in our device the reduced pressure worksfrom the top of diaphragm and merely equalizing the pressure, whichreduces the liability of diaphragm breaking, and whereby dispersos withmany parts which are necessary to get the same results in otherregulators now in existence.

Having thus described our invention, what we claim as new, and desire tosecure by Letters Patent of the United States, is

l. In apressure-regulator, the combination of the shell provided with achannel in its upper surface, a passage leading into it from thedischarge side of the same, and a cylindrical partition with a diaphragmfor controlling the opening in said partition, and also provided withopenings registering with said channels whereby the reduced pressurecontrols from the top the movement of the diaphragm, substantially asdescribed.

2. In a press ure-regulator, the combination with the shell and cap forthe same provided with adjoining channels separated by a diaphragm, saiddiaphragm being perforated between the channels, one side of the channelin the cap being also perforated, a passage leading from the dischargeside of the casing into said channels, and means for admitting luidunder the diaphragm substantially as described.

3. In a pressure-regulator, the combination of a casing provided with aninlet and outlet` ports, a channel in the upper surface, a passageleading from the outlet into the same with a diaphragm, an opening inthe shell controlled by the diaphragm, openings in the diaphragmopposite the channels, and a regulating-spring on the back of thediaphragm, substantially as described.

4E. Ina pressure-regulator, the combination of a casing provided with achannel on its upper surface with a cap having a channel in its undersurface, a diaphragm held between the two surfaces formed by thechannels, perforations in said diaphragm between the channels and apassage leading from the discharge side of the regulator through thechannels to the back of4 the diaphragm, substantially as described.y

In testimony whereof we affix our signatures in presence of twowitnesses.

THOMAS J. BUCKLEY. FREDRICK E. PLACE.

Witnesses:

EDMUND A. GRAY, WILLIAM GRAY.

